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# NAB under Andrew Irvine: business banking strong, investor housing the weak spot
- URL: https://www.benchmarkanalytics.com.au/nab-andrew-irvine-market-growth/
- Published: 2026-09-07T07:48:41.000Z
- Updated: 2026-09-07T07:48:41.000Z
- Description: More than two years into Andrew Irvine’s tenure, NAB is outperforming the banking system in business lending but losing ground in investor mortgages.
- Author: Nick Hossack
- Tags: NAB, Andrew Irving, Business Banking, Investor Mortgages, Banking Competition, #banking

Andrew Irvine took over as NAB Group CEO on **2 April 2024**, succeeding Ross McEwan. More than two years into his tenure, APRA’s monthly banking statistics show a mixed but generally solid market-growth record.

The standout is **business lending**. NAB’s business loan book has grown **24.8%** since Irvine’s appointment, ahead of the **23.9%** increase across all ADIs, although slightly behind the **27.0%** growth recorded by the major banks. Business lending covers credit provided to companies, small businesses and other commercial borrowers.

Housing is more uneven. **Owner-occupied housing lending** — mortgages for borrowers living in the property — has risen **13.0%**, ahead of the major-bank average of 12.0%, but below system growth of 14.1%. **Investment housing lending**, covering mortgages on rental or investment properties, has increased only **6.2%**, far below the 17.3% system increase. As a result, total housing lending growth of **10.3%** trails all ADIs by 4.8 percentage points.

**Resident deposits** — deposits held by Australian households, businesses and other residents — have grown **17.4%**, broadly matching the majors and system.

Overall, Irvine’s NAB is **defending or gaining ground in business banking and owner-occupied mortgages, while investor housing is the clear weak spot**.

The figures are from **APRA’s Monthly ADI Statistics for July 2026** and measure changes in outstanding balances, rather than new lending flows.

NAB under Andrew Irvine 

Growth in key markets since April 2024 

| Market                                        | Balance  | Growth | Majors | All ADIs |
| --------------------------------------------- | -------- | ------ | ------ | -------- |
| **Business lending** 21.8% market share       | $276.5bn | +24.8% | +27.0% | +23.9%   |
| **Investor housing** 14.0% market share       | $115.3bn | +6.2%  | +14.1% | +17.3%   |
| **Owner-occupied housing** 14.0% market share | $236.2bn | +13.0% | +12.0% | +14.1%   |
| **Total housing** 14.0% market share          | $351.5bn | +10.3% | +12.7% | +15.1%   |
| **Resident deposits** 17.0% market share      | $595.9bn | +17.4% | +17.2% | +18.2%   |

**Period:** 2 April 2024 to July 2026.  
**Source:** APRA Monthly ADI Statistics. Calculations: Benchmark Analytics.